Preformation of alpha-clusters in alpha-decay

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Lovas, R.G.^1

MTA Institute for Nuclear Research, PO Box 51, Debrecen

H-4001, Hungary^1

关键词: Alpha decay;    Cluster-model analysis;    Complex energy;    Microscopic structures;    Shell models;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012011/pdf
DOI  :  10.1088/1742-6596/863/1/012011

来源: IOP

【 摘 要 】

Comprehensive cluster-model analyses of all decay cases show that the probability of clustering in most α-decaying states is close to unity. Although early shell-model results for the preformation probability grossly undershot this value and the α-decay width accordingly, more recent sophisticated microscopic structure calculations are in agreement with this observation, except that of a complex-energy shell model. I review the relavant shell model calculations in an attempt to pinpoint the crucial ingredients, which are likely to be responsible for this disagreement.